What are the best answers for “a foolish or dull-witted fellow.”?

addlebrain, addlehead, addlepate.

How many letters does the top answer for “a foolish or dull-witted fellow.” have?

The most common answer is addlebrain (10 letters).

3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

addlebrain 10 letters web-def

A foolish or dull-witted fellow. [Colloq.]

addlehead 9 letters web-def

A foolish or dull-witted fellow. [Colloq.]

addlepate 9 letters web-def

A foolish or dull-witted fellow. [Colloq.]